ROHN JRM27505 Non-Penetrating Roof Antenna Mount 2.875 in. x 5 ft. Mast
ROHN
Made in the USA!
Mast Dimensions - 2.5“ STD. Pipe (2-7/8 O.D.) x 60”
The JRM is a non-penetrating, 5' square ballast type roof mount that supports a 5’ pipe mast. The mast is extendable to 10’ (see JRM27555 or JRM27510). The JRM is designed to receive up to 12 standard concrete blocks as ballast. The JRM is used in cellular, PCS, broadband and other applications. . The base mount and mast pipe are Hot dip galvanized for corrosion protection and go together quickly.
This Item Ships LTL Freight ONLY.
Height and Antenna Loading capability are dependent upon ballast weight to counter the tip-over moment of the Windspeed rating desired. In addition to the Windspeed Loading Data found under the "Specification" tab (if Available), You need to Consult an Engineer to determine the Building Code Requirements and Load Bearing Capacity of the roof structure where you will be installing this mount. It is Important to choose a Mount and Mounting Location with a Picture of the Finished Installation in Mind. Be Sure to First select a location that lends itself to applying a Load without Compromising the Integrity of the Material you place the mount on top of; i.e. roof membrane, covering, decorative cover, etc., or the Structural Members beneath. Next consider the Location over a Lifetime of Adjustments, does it lend itself to modifications in Height or Direction? Larger Antennas increase the surface area presented to air movement and thus, Wind-load does increase. As the height of the mast increases from Its last attached point on the structure, the torque applied in cantilever towards the tip-over moment also increases with Antenna off-center Weight and Wind-Load EPA (Effective Projected Area), requiring a more substantive Downward Force and/or Load Dissipation; i.e. supplemental Down-guys may be required as to keep ballast weight within Load-bearing capacity. Keep the Distance Minimal from the Antenna to the Equipment you feed, as to minimize loss and the need for Amplification.
A Retention Tether SCK150 (Safety Cable Kit) is required for Commercial Installations to mitigate Loss and Damage to Property, Further, the FRM-PAD or FRM-MAT is recommended for all installations to prevent slippage, distribute weight more evenly and prevent damage to the roof surface
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RG-59 Direct Burial Cable for Underground Installations
The days of running cable on top of the Ground and dodging it with the Lawn Mower are gone. If you intend to invest in Cable Plant that will be placed from Building to Building, or from one Cable TV, Satellite TV, Antenna TV or Security Camera location to another, we encourage you to use the Products we Offer that were designed Specifically for this purpose. Within this Category, you will find Coaxial Cable specifically Designed for Direct Burial and Conduit Placement in the Ground, for dedicated runs or mass distribution. Our Customers typically use these Products in the following Scenarios:
Mobile Home Parks- Where they are Administrating their own Cable TV or SMATV System with Underground Outside Plant running along the same easement that Telephone and Power runs past each Lot. UG Installation is a little more expensive to install, but is more aesthetically pleasing. In the same Conduits and Trench-lines, Modulated Security Camera feeds run through this cable, each independently from a camera to a Central Location for further processing and recording. Once processed and combined as TV channels along with the others offered, they distribute these Camera Feeds for residents to monitor their guests and service appointments arrivals and departures, sharing the Security Responsibility with all.
Small Apartment, Condominium, Hotel and Motel Complexes not only use this cable for Strategically placed Security Camera Feeds from Entry point locations, but as a means of MATV Antenna Installation, distributing their own Signal to meat up at the same Lock-boxes that serve as central location connections to the units inside. Where the managers of the Property may have provided Cable TV or Satellite (SMATV) systems on the Properties, some Tenants may not be able to afford it, having an alternate feed those residents opting for Free Off-Air TV beats having several located on the Balconies. Antenna Reception may not be equal at any location on the Property, and only one or several locations my be deemed sufficient in Signal Quality or Aesthetics concerns. Building to Building Coaxial Cable Feeds run underground may be the answer as it will serve to maintain the Codes and Policies in place without necessity of deviation or waiver.
The same Antenna location issues are faced by Home Property owners Large and Small. There may be only one location not blocked by Trees or other buildings to locate the Antenna, and of course, the signal is needed some place else. Again, Underground Placement of Coaxial Cable in Conduit is a path that can be revisited and up-graded by simply pulling out the Old and pulling in the New.
We are here because we don't just Sell these Products, we use them also. We have decades of experience around the World in System Construction and Maintenances. So don't be shy, call us with your particular need, and let's see what we can come up with for a Solution (besides, Free Advice!)
